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United Kingdom Science Technology

Cambridge Team Breaks Superconductor World Record 73

Posted by samzenpus
from the light-as-a-feather dept.
An anonymous reader writes University of Cambridge scientists have broken a decade-old superconducting record by packing a 17.6 Tesla magnetic field into a golf ball-sized hunk of crystal — equivalent to about three tons of force. From the Cambridge announcement: "A world record that has stood for more than a decade has been broken by a team led by University of Cambridge engineers, harnessing the equivalent of three tonnes of force inside a golf ball-sized sample of material that is normally as brittle as fine china. The Cambridge researchers managed to 'trap' a magnetic field with a strength of 17.6 Tesla — roughly 100 times stronger than the field generated by a typical fridge magnet — in a high temperature gadolinium barium copper oxide (GdBCO) superconductor, beating the previous record by 0.4 Tesla."
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Cambridge Team Breaks Superconductor World Record

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  • Stronger? (Score:4, Interesting)

    by i kan reed (749298) on Monday June 30, 2014 @10:29AM (#47350029) Homepage Journal

    I'm impressed, but I'm not sure about even the most theoretical engineering applications of a little more field strength. Higher heat tolerance is easy to grapple with, but this an improvement that's hard to imagine practical applications for.

  • Re:ummm...nope (Score:5, Interesting)

    by Firethorn (177587) on Monday June 30, 2014 @11:16AM (#47350397) Homepage Journal

    Which would be odd, seeing as how in US parlance 'fridge magnet' does indeed mean a magnet intended to attach to your fridge, typically containing advertising or cute sayings, or holding things like sheets of your kid's art up.

    Per wiki a typical fridge magnet is 5 mt, or .005 Tesla. So this experiment is more like 3000X as strong as a fridge magnet.

    This thing is 10X as strong as most of my 'fridge' magnets, but then I like to play with neodymium ones.

    Going by my experience, their 'fridge magnets' would hold to a fridge very well without requiring excessive strength to pull off. Most of mine you have to think about it a bit.

    Oh, and 16T is enough to levitate a frog. [wikipedia.org]

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